Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (870,053 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Bob Pressey
Systematic Conservation Planning
Sustainable Management
Integrated Coastal Planning
Decision Support Systems
Marine Protecte
Metrics
H-Index
i10 Index
Citation
104
279
48,693
* Rankings
Ranking Based On Selection: 2
Bette L Willis
Coral Reef Science
Coral Biology and Ecology
Evolutionary Biology
Metrics
H-Index
i10 Index
Citation
99
217
38,771
* Rankings
Ranking Based On Selection: 3
Philip Munday
reef fish ecology. climate change. ocean acidification.
Metrics
H-Index
i10 Index
Citation
96
267
32,247
* Rankings
Ranking Based On Selection: 8
Kingsford Michael J
reef fish ecology
biological oceanography
benthic ecology
plankton
jellyfishes
Metrics
H-Index
i10 Index
Citation
61
165
14,419
* Rankings
Ranking Based On Selection: 9
Marcus Sheaves
Marine Biology
Ecology
Estuary ecology
Estuary Biology
Mangrove ecology
Metrics
H-Index
i10 Index
Citation
59
176
11,875

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* Rankings
Ranking Based On Selection: 11
Scott G Smithers
Coastal geomorphology
coral reef geomorphology
tropical coasts
reef islands
sea level
Metrics
H-Index
i10 Index
Citation
46
91
8,602
* Rankings
Ranking Based On Selection: 12
Mia Hoogenboom
Coral biology
metabolic scaling
energy budgets
behavioral ecology
Metrics
H-Index
i10 Index
Citation
44
74
14,117
* Rankings
Ranking Based On Selection: 13
Len Mckenzie
seagrass ecology
marine biology
resilience
monitoring
climate change
Metrics
H-Index
i10 Index
Citation
44
114
8,220
* Rankings
Ranking Based On Selection: 14
Cathy Dichmont Née Raubenheimer
Fisheries
Coastal zone
Climate adaptation
Management Strategy Evaluation
Metrics
H-Index
i10 Index
Citation
44
99
5,970
* Rankings
Ranking Based On Selection: 15
Jon C Day
marine protected areas (MPAs)
marine spatial planning/zoning
conservation planning
ocean
Metrics
H-Index
i10 Index
Citation
36
71
8,200
* Rankings
Ranking Based On Selection: 16
Sue Ann Watson
Marine Invertebrates
Environmental Change
Ocean Acidification
Latitudinal Gradients
Behaviour
Metrics
H-Index
i10 Index
Citation
35
52
4,751
* Rankings
Ranking Based On Selection: 17
Thomas C Stieglitz
coastal eco hydrology
coastal processes
submarine groundwater discharge
Metrics
H-Index
i10 Index
Citation
35
64
4,640
* Rankings
Ranking Based On Selection: 19
Jonathan Nott
Palaeoclimate
tropical cyclones
palaeo-cyclones
fluvial and coastal geomorphology
Metrics
H-Index
i10 Index
Citation
34
61
4,543
* Rankings
Ranking Based On Selection: 20
Jennifer Donelson
Marine Ecology
Climate Change Science
Acclimation
Parental Effects
Metrics
H-Index
i10 Index
Citation
33
55
7,134
* Rankings
Ranking Based On Selection: 21
Ian M Mcleod
Marine biology - science communication - marine restoration
Metrics
H-Index
i10 Index
Citation
29
41
2,819
* Rankings
Ranking Based On Selection: 24
Jorge G Álvarez Romero
systematic conservation planning
conservation planning
ridge to reef planning
spatial planning
Metrics
H-Index
i10 Index
Citation
28
41
6,649
* Rankings
Ranking Based On Selection: 26
Sterling B Tebbett
Marine Biology
Marine Ecology
Functional Ecology
Coral Reef Ecology
Metrics
H-Index
i10 Index
Citation
27
43
2,215
* Rankings
Ranking Based On Selection: 27
Vimoksalehi Lukoschek
Population Genetics
Coral Reefs
Larval Dispersal
Connectivity
Marine Snakes
Metrics
H-Index
i10 Index
Citation
26
37
4,829
* Rankings
Ranking Based On Selection: 28
Hugo B Harrison
Coral Reef Ecology
Population Genetics
Marine Reserves
Fisheries Management
Biodiversity and Conservation
Metrics
H-Index
i10 Index
Citation
25
34
7,810
* Rankings
Ranking Based On Selection: 31
Margaux Hein
Coral reef restoration
conservation
socio-ecological systems
Metrics
H-Index
i10 Index
Citation
20
25
2,284
* Rankings
Ranking Based On Selection: 32
Maya Srinivasan
Coral reef fishes
coral reefs
ecology
conservation biology
Metrics
H-Index
i10 Index
Citation
20
23
3,464
* Rankings
Ranking Based On Selection: 33
Oleg Makarynskyy
oceanography
coastal and estuarine
hydrocarbon spills
risk assessments
Metrics
H-Index
i10 Index
Citation
20
32
1,884
* Rankings
Ranking Based On Selection: 34
Rebecca J Fox
Behavioural ecology
Marine ecology
Evolutionary Biology
Metrics
H-Index
i10 Index
Citation
19
34
2,218
* Rankings
Ranking Based On Selection: 41
Robert Streit
coral reefs
ecosystem functions
functional ecology
climate change
governance
Metrics
H-Index
i10 Index
Citation
13
14
964
* Rankings
Ranking Based On Selection: 45
Catherine Bryant
Marine habitat research
Tropical seagrass ecology and conservation
Metrics
H-Index
i10 Index
Citation
12
12
723
* Rankings
Ranking Based On Selection: 47
Severine Choukroun
Physical oceanography
coastal modelling
quantitative ecology
spatial analysis
Metrics
H-Index
i10 Index
Citation
11
11
870
* Rankings
Ranking Based On Selection: 49
Tatjana C Good
Systematic Conservation Planning
Sustainable Management
Integrated Coastal Planning
Decision Support Systems
Marine Protecte
Metrics
H-Index
i10 Index
Citation
11
12
2,997
* Rankings
Ranking Based On Selection: 51
Marites Canto
oceanography
ocean optics
remote sensing
benthic light
water quality
Metrics
H-Index
i10 Index
Citation
10
10
476
Jess Cramp
Sharks
Fisheries
Marine Conservation
Marine Policy
Human Wildlife Conflict
Metrics
H-Index
i10 Index
Citation
8
8
486
Jess Williams
Sea Turtles
Conservation Biology
Marine Ecology
Fisheries
IWT
Metrics
H-Index
i10 Index
Citation
8
8
313
Nia Naelul Hasanah Ridwan
Maritime Archaeology
Underwater Cultural Heritage
Underwater Archaeology
Heritage Preservation
Sustainable Shipwreck Tourism
Metrics
H-Index
i10 Index
Citation
7
5
134
Rachel Miller
marine policy
marine migratory taxa
stakeholders
environmental management
Metrics
H-Index
i10 Index
Citation
6
3
85
Gemma F Galbraith
Marine ecology
Coral Reef Fishes
Conservation Biology
ROVs
Mesophotic Coral Ecosystems
Metrics
H-Index
i10 Index
Citation
6
2
143
Nicolas Lubitz
marine ecology
animal migration
sharks and rays
predator ecology
Metrics
H-Index
i10 Index
Citation
5
5
110
Chia Miin Chua
Marine biology
marine ecology
early life history
embryogenesis
Metrics
H-Index
i10 Index
Citation
4
4
576
Claudia Trave
Marine Biology
Coastal Ecology
Anthropogenic Impacts
Estuarine Ecosystems
Recreational Fisheries
Metrics
H-Index
i10 Index
Citation
4
3
183
Alexander Carl Eric Buck
Marine biology
marine ecology
coral reef science
Crown-of-Thorns Seastar
Climate Change
Metrics
H-Index
i10 Index
Citation
3
3
256
Jeremy Day
marine ecology
predator interactions
echinoderms
crustaceans
kelp forests
Metrics
H-Index
i10 Index
Citation
3
1
27
Stuart T Jones
Marine Science
Non-compliance
Eco-labelling
Community Ecology
Metrics
H-Index
i10 Index
Citation
3
1
24
Rebecca Diggins
marine conservation
sea turtle genetics
marine and coastal ecology
Metrics
H-Index
i10 Index
Citation
1
0
9
Bhavnah Komul Kalidin
Marine conservation
Marine pollution
Bioinvasion & Biosecurity
Sustainable development
Livelihood protection
Metrics
H-Index
i10 Index
Citation
1
0
7
Rankings
Ranking Based On Selection: 1
Bob Pressey
Metrics
H-Index
i10 Index
Citation Counts
104
279
48,693
Systematic Conservation Planning
Sustainable Management
Integrated Coastal Planning
Decision Support Systems
Marine Protecte
Rankings
Ranking Based On Selection: 2
Bette L Willis
Metrics
H-Index
i10 Index
Citation Counts
99
217
38,771
Coral Reef Science
Coral Biology and Ecology
Evolutionary Biology
Rankings
Ranking Based On Selection: 3
Philip Munday
Metrics
H-Index
i10 Index
Citation Counts
96
267
32,247
Rankings
Ranking Based On Selection: 4
David G Bourne
Metrics
H-Index
i10 Index
Citation Counts
78
192
22,103
Rankings
Ranking Based On Selection: 5
Garry R Russ
Metrics
H-Index
i10 Index
Citation Counts
77
143
20,942
Rankings
Ranking Based On Selection: 6
Andrew Hoey
Metrics
H-Index
i10 Index
Citation Counts
68
160
23,557
Rankings
Ranking Based On Selection: 7
Norman C Duke
Metrics
H-Index
i10 Index
Citation Counts
62
140
23,865
Rankings
Ranking Based On Selection: 8
Kingsford Michael J
Metrics
H-Index
i10 Index
Citation Counts
61
165
14,419
reef fish ecology
biological oceanography
benthic ecology
plankton
jellyfishes
Rankings
Ranking Based On Selection: 9
Marcus Sheaves
Metrics
H-Index
i10 Index
Citation Counts
59
176
11,875
Marine Biology
Ecology
Estuary ecology
Estuary Biology
Mangrove ecology
Rankings
Ranking Based On Selection: 10
Mark Hamann
Metrics
H-Index
i10 Index
Citation Counts
54
132
11,978

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Scott G Smithers
Metrics
H-Index
i10 Index
Citation Counts
46
91
8,602
Coastal geomorphology
coral reef geomorphology
tropical coasts
reef islands
sea level
Rankings
Ranking Based On Selection: 12
Mia Hoogenboom
Metrics
H-Index
i10 Index
Citation Counts
44
74
14,117
Coral biology
metabolic scaling
energy budgets
behavioral ecology
Rankings
Ranking Based On Selection: 13
Len Mckenzie
Metrics
H-Index
i10 Index
Citation Counts
44
114
8,220
seagrass ecology
marine biology
resilience
monitoring
climate change
Rankings
Ranking Based On Selection: 14
Cathy Dichmont Née Raubenheimer
Metrics
H-Index
i10 Index
Citation Counts
44
99
5,970
Fisheries
Coastal zone
Climate adaptation
Management Strategy Evaluation
Rankings
Ranking Based On Selection: 15
Jon C Day
Metrics
H-Index
i10 Index
Citation Counts
36
71
8,200
marine protected areas (MPAs)
marine spatial planning/zoning
conservation planning
ocean
Rankings
Ranking Based On Selection: 16
Sue Ann Watson
Metrics
H-Index
i10 Index
Citation Counts
35
52
4,751
Marine Invertebrates
Environmental Change
Ocean Acidification
Latitudinal Gradients
Behaviour
Rankings
Ranking Based On Selection: 17
Thomas C Stieglitz
Metrics
H-Index
i10 Index
Citation Counts
35
64
4,640
coastal eco hydrology
coastal processes
submarine groundwater discharge
Rankings
Ranking Based On Selection: 18
Michael Rasheed
Metrics
H-Index
i10 Index
Citation Counts
34
100
5,088
Rankings
Ranking Based On Selection: 19
Jonathan Nott
Metrics
H-Index
i10 Index
Citation Counts
34
61
4,543
Palaeoclimate
tropical cyclones
palaeo-cyclones
fluvial and coastal geomorphology
Rankings
Ranking Based On Selection: 20
Jennifer Donelson
Metrics
H-Index
i10 Index
Citation Counts
33
55
7,134
Marine Ecology
Climate Change Science
Acclimation
Parental Effects
Rankings
Ranking Based On Selection: 21
Ian M Mcleod
Metrics
H-Index
i10 Index
Citation Counts
29
41
2,819
Marine biology - science communication - marine restoration
Rankings
Ranking Based On Selection: 22
Aaron M Davis
Metrics
H-Index
i10 Index
Citation Counts
29
57
3,372
Rankings
Ranking Based On Selection: 23
Paul Mcshane
Metrics
H-Index
i10 Index
Citation Counts
29
50
2,346
Rankings
Ranking Based On Selection: 24
Jorge G Álvarez Romero
Metrics
H-Index
i10 Index
Citation Counts
28
41
6,649
systematic conservation planning
conservation planning
ridge to reef planning
spatial planning
Rankings
Ranking Based On Selection: 25
Paul York
Metrics
H-Index
i10 Index
Citation Counts
28
49
2,442
Rankings
Ranking Based On Selection: 26
Sterling B Tebbett
Metrics
H-Index
i10 Index
Citation Counts
27
43
2,215
Marine Biology
Marine Ecology
Functional Ecology
Coral Reef Ecology
Rankings
Ranking Based On Selection: 27
Vimoksalehi Lukoschek
Metrics
H-Index
i10 Index
Citation Counts
26
37
4,829
Population Genetics
Coral Reefs
Larval Dispersal
Connectivity
Marine Snakes
Rankings
Ranking Based On Selection: 28
Hugo B Harrison
Metrics
H-Index
i10 Index
Citation Counts
25
34
7,810
Coral Reef Ecology
Population Genetics
Marine Reserves
Fisheries Management
Biodiversity and Conservation
Rankings
Ranking Based On Selection: 29
Caroline Petus
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,953
Rankings
Ranking Based On Selection: 30
Pedro Henrique Pereira
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,028
Rankings
Ranking Based On Selection: 31
Margaux Hein
Metrics
H-Index
i10 Index
Citation Counts
20
25
2,284
Coral reef restoration
conservation
socio-ecological systems
Rankings
Ranking Based On Selection: 32
Maya Srinivasan
Metrics
H-Index
i10 Index
Citation Counts
20
23
3,464
Coral reef fishes
coral reefs
ecology
conservation biology
Rankings
Ranking Based On Selection: 33
Oleg Makarynskyy
Metrics
H-Index
i10 Index
Citation Counts
20
32
1,884
oceanography
coastal and estuarine
hydrocarbon spills
risk assessments
Rankings
Ranking Based On Selection: 34
Rebecca J Fox
Metrics
H-Index
i10 Index
Citation Counts
19
34
2,218
Rankings
Ranking Based On Selection: 35
Kathryn Chartrand
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,342
Rankings
Ranking Based On Selection: 36
Michael Bradley
Metrics
H-Index
i10 Index
Citation Counts
16
21
882
Rankings
Ranking Based On Selection: 37
Naomi M Gardiner
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,207
Rankings
Ranking Based On Selection: 38
Arnold Mangott
Metrics
H-Index
i10 Index
Citation Counts
14
14
1,606
Rankings
Ranking Based On Selection: 39
Charlotte L Johansson
Metrics
H-Index
i10 Index
Citation Counts
14
17
867
Rankings
Ranking Based On Selection: 41
Robert Streit
Metrics
H-Index
i10 Index
Citation Counts
13
14
964
coral reefs
ecosystem functions
functional ecology
climate change
governance
Rankings
Ranking Based On Selection: 42
Patrick Smallhorn-West
Metrics
H-Index
i10 Index
Citation Counts
12
18
634
Marine conservation
coral reef ecology
small-scale fisheries
Rankings
Ranking Based On Selection: 44
Kay Critchell
Metrics
H-Index
i10 Index
Citation Counts
12
13
1,303
Rankings
Ranking Based On Selection: 45
Catherine Bryant
Metrics
H-Index
i10 Index
Citation Counts
12
12
723
Marine habitat research
Tropical seagrass ecology and conservation
Rankings
Ranking Based On Selection: 46
Lucas Langlois
Metrics
H-Index
i10 Index
Citation Counts
11
15
566
Rankings
Ranking Based On Selection: 47
Severine Choukroun
Metrics
H-Index
i10 Index
Citation Counts
11
11
870
Physical oceanography
coastal modelling
quantitative ecology
spatial analysis
Rankings
Ranking Based On Selection: 48
Justin Q Welsh
Metrics
H-Index
i10 Index
Citation Counts
11
11
862
Rankings
Ranking Based On Selection: 49
Tatjana C Good
Metrics
H-Index
i10 Index
Citation Counts
11
12
2,997
Systematic Conservation Planning
Sustainable Management
Integrated Coastal Planning
Decision Support Systems
Marine Protecte
Rankings
Ranking Based On Selection: 50
April Hall (Née Boaden)
Metrics
H-Index
i10 Index
Citation Counts
10
11
362
Marine conservation
coral reef ecology
fisheries
management
Rankings
Ranking Based On Selection: 51
Marites Canto
Metrics
H-Index
i10 Index
Citation Counts
10
10
476
oceanography
ocean optics
remote sensing
benthic light
water quality
Rankings
Ranking Based On Selection: 52
Carlo Mattone
Metrics
H-Index
i10 Index
Citation Counts
9
9
266
Rankings
Ranking Based On Selection: 53
Jaelen Nicole Myers
Metrics
H-Index
i10 Index
Citation Counts
9
8
175
Rankings
Ranking Based On Selection: 54
Jess Cramp
Metrics
H-Index
i10 Index
Citation Counts
8
8
486
Sharks
Fisheries
Marine Conservation
Marine Policy
Human Wildlife Conflict
Rankings
Ranking Based On Selection: 55
Jess Williams
Metrics
H-Index
i10 Index
Citation Counts
8
8
313
Sea Turtles
Conservation Biology
Marine Ecology
Fisheries
IWT
Rankings
Ranking Based On Selection: 56
Helen F Yan
Metrics
H-Index
i10 Index
Citation Counts
7
6
403
Rankings
Ranking Based On Selection: 57
Nia Naelul Hasanah Ridwan
Metrics
H-Index
i10 Index
Citation Counts
7
5
134
Maritime Archaeology
Underwater Cultural Heritage
Underwater Archaeology
Heritage Preservation
Sustainable Shipwreck Tourism
Rankings
Ranking Based On Selection: 58
Katia Nicolet
Metrics
H-Index
i10 Index
Citation Counts
7
5
310
Rankings
Ranking Based On Selection: 59
Yanfang Li
Metrics
H-Index
i10 Index
Citation Counts
6
5
149
Rankings
Ranking Based On Selection: 60
Rachel Miller
Metrics
H-Index
i10 Index
Citation Counts
6
3
85
marine policy
marine migratory taxa
stakeholders
environmental management
Rankings
Ranking Based On Selection: 61
Gemma F Galbraith
Metrics
H-Index
i10 Index
Citation Counts
6
2
143
Marine ecology
Coral Reef Fishes
Conservation Biology
ROVs
Mesophotic Coral Ecosystems
Rankings
Ranking Based On Selection: 62
Nicolas Lubitz
Metrics
H-Index
i10 Index
Citation Counts
5
5
110
marine ecology
animal migration
sharks and rays
predator ecology
Rankings
Ranking Based On Selection: 63
Amy Coppock
Metrics
H-Index
i10 Index
Citation Counts
5
3
94
Marine Ecology
Coral Reef Ecology
Behavioural Ecology
Fish
Rankings
Ranking Based On Selection: 64
Chia Miin Chua
Metrics
H-Index
i10 Index
Citation Counts
4
4
576
Marine biology
marine ecology
early life history
embryogenesis
Rankings
Ranking Based On Selection: 65
Gideon Heller Wagner
Metrics
H-Index
i10 Index
Citation Counts
4
4
222
Rankings
Ranking Based On Selection: 66
Bruna Louise Pereira Luz
Metrics
H-Index
i10 Index
Citation Counts
4
4
133
Rankings
Ranking Based On Selection: 67
Claudia Trave
Metrics
H-Index
i10 Index
Citation Counts
4
3
183
Marine Biology
Coastal Ecology
Anthropogenic Impacts
Estuarine Ecosystems
Recreational Fisheries
Rankings
Ranking Based On Selection: 68
Joan Yq Li
Metrics
H-Index
i10 Index
Citation Counts
4
3
69
Rankings
Ranking Based On Selection: 69
Benjamin Cresswell
Metrics
H-Index
i10 Index
Citation Counts
4
2
126
Rankings
Ranking Based On Selection: 70
Rachel Neil
Metrics
H-Index
i10 Index
Citation Counts
4
2
36
Rankings
Ranking Based On Selection: 71
Alexander Carl Eric Buck
Metrics
H-Index
i10 Index
Citation Counts
3
3
256
Marine biology
marine ecology
coral reef science
Crown-of-Thorns Seastar
Climate Change
Rankings
Ranking Based On Selection: 72
Suzanne K Hillcoat
Metrics
H-Index
i10 Index
Citation Counts
3
1
41
Rankings
Ranking Based On Selection: 73
Jeremy Day
Metrics
H-Index
i10 Index
Citation Counts
3
1
27
marine ecology
predator interactions
echinoderms
crustaceans
kelp forests
Rankings
Ranking Based On Selection: 74
Stuart T Jones
Metrics
H-Index
i10 Index
Citation Counts
3
1
24
Marine Science
Non-compliance
Eco-labelling
Community Ecology
Rankings
Ranking Based On Selection: 75
Christophe Cleguer
Metrics
H-Index
i10 Index
Citation Counts
3
1
72
Rankings
Ranking Based On Selection: 76
Gabriela Thompson-Saud
Metrics
H-Index
i10 Index
Citation Counts
2
1
37
Marine Spatial Ecology
Conservation planning
Biophysical modeling
Rankings
Ranking Based On Selection: 77
Alyx P Terrell
Metrics
H-Index
i10 Index
Citation Counts
1
1
81
Marine Science
Microbiology
Climate Change
Ecology
Genetics
Rankings
Ranking Based On Selection: 78
François Latrille
Metrics
H-Index
i10 Index
Citation Counts
1
1
41
Rankings
Ranking Based On Selection: 79
Shelby Marhoefer
Metrics
H-Index
i10 Index
Citation Counts
1
1
31
Rankings
Ranking Based On Selection: 80
Alessandro Delli Paoli Carini
Metrics
H-Index
i10 Index
Citation Counts
1
1
25
Marine biology
microbiology
sea turtle
antibiotic resistance
Rankings
Ranking Based On Selection: 81
Rebecca Diggins
Metrics
H-Index
i10 Index
Citation Counts
1
0
9
marine conservation
sea turtle genetics
marine and coastal ecology
Rankings
Ranking Based On Selection: 82
Bhavnah Komul Kalidin
Metrics
H-Index
i10 Index
Citation Counts
1
0
7
Marine conservation
Marine pollution
Bioinvasion & Biosecurity
Sustainable development
Livelihood protection